JP2512455B2 - Data imprinting device for X-ray film cassette - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of the Invention (Industrial field of application) The present invention is a roentgen film (hereinafter simply referred to as a film) stored in a cassette for radiography.
The invention can be used as a device for imprinting data such as a consultation number, a person's name, date and time.

(Prior Art) When an X-ray is taken for diagnosis or the like, the film is put in a cassette and used.

As shown in FIG. 8, this cassette a is a flat box-shaped main body 1 to which a lid 3 is attached by a hinge 2 to prevent light from entering the main body 1. To open the lid, This is done by pushing the handle 4 with a finger to elastically project from the lid and retracting the claw that engages with the main body 1.

An exposure window 6 provided with a small lid 5 for blocking light at one corner of the lid 3.
However, when the small lid 5 is opened in a dark room and an image of a card on which necessary data is written is made incident on the exposure window 6, the data is imprinted on one corner of the film.

The structure of the small lid 5 is as shown in FIG. 9 (AA sectional view of FIG. 8) and FIG. 10 (BB sectional view of FIG. 9).

A rectangular dish-shaped small lid guide 7 larger than the exposure window 6 is attached to the inner surface of the lid 3 (lower surface in FIGS. 9 to 10), and is attached to the lower surface of the small lid guide 7 below the exposure window 6 of the lid 3. Has an opening 8 of the same size. 2 between the lid 3 and the guide 7.
A small lid 5 composed of portions 5a and 5b is slidably inserted in the left-right direction in FIG. A small hole 9 is bored in the end of the portion 5a, and one end of which is fixed laterally to the width of the portion 5a and an opposite end of which is formed into a notch 10 formed on the edge of the small lid guide 7 under the small hole 9. A leaf spring 11 to be locked is provided. The leaf spring 11 acts as a lock to prevent the small lid 5 from opening. An elastic light-shielding piece 12 is attached between the leaf spring 11 and the lower portion of the small hole 9. Therefore, the pin is inserted from the small hole 9 and the leaf spring 11
By pushing down and removing it from the notch 10, the part 5a of the small lid can be moved to the left in FIG.
When it comes into contact with 5b, both parts 5a and 5b can be moved to the left to fully open the exposure window 6, so that the data can be transferred onto the film through the exposure window 6 and the opening 8.

When the pin 5 hooked in the small hole 9 moves the small lid portion 5a to the right in FIG. 8, the portion 5a pulls out the portion 5b and the exposure window 6 is closed.

In the conventional data imprinting device, the small lid is opened by pushing the cassette into the device, the data is imprinted, and the small lid is closed when the cassette is pulled out from the device. The mechanism for opening and closing the small lid provided on the device is as shown in FIG.
Along with the operation of pushing the cassette into the data imprinting device in the direction of the thick arrow, the pin 13 is rotated about the horizontal shaft 14 in the vertical plane to engage the pin 9 with the small hole 9 and the portion 5a of the small lid. I tried to move and move at the same time.

(Problems to be Solved by the Invention) The pin 13 is rotated to engage the pin with the small hole 9 and the small lid portion.
The simultaneous movement of 5a causes the leaf spring 11 to move down while pressing it against the side surface of the notch 10, and the force of pushing the small lid portion 5a downward is applied to the small lid guide 7. The frictional resistance between and becomes large, it is difficult to open and close the small lid smoothly, and the shape and size of the small hole 9 need to be adjusted delicately, so it feels awkward in production and use. Was there.

(B) Structure of the Invention (Means for Solving the Problems) This invention moves along the small lid guide (7) to open and close the exposure window (6) for data imprinting, and when closing, the leaf spring (11). ) Is attached to the notch of the small lid guide (7) and locked in a cassette (a) having a small lid (5) that is locked, and the data is transferred through the exposure window (6) to the X-ray film cassette. In a data imprinting device for use in recording, a substrate (17) having a space into which a corner of a cassette (a) can be inserted, an upper plate (18) having a window on which a card (b) having data is placed, and a side plate (19). Partition plate (20) with a lens (24) attached to it to form a casing (16)
The casing is divided into a lower chamber (21) and an upper chamber (22) by a lamp (23) attached to the upper chamber (22), and a cassette (a) inserted in the substrate (17) is inserted in the lower chamber (21). ) The small lid (5) is opened and closed, and the lens (2
4) It is configured with a mechanism that makes the light that passes through enter.
This mechanism consists of a shutter plate (28) with an exposure window (6), which is reciprocated by a motor (30) along a fixed guide rod (29) through a crank mechanism, and a small cassette on both ends. The roller (46) and the pin (50) inserted through the small hole (9) of the lid (5) are provided, and the pin (5) is attached by the spring (53).
The third lever (49) that can pull up the end with (0)
Horizontal axis (48) on side plate (47) connected to shutter plate (28)
When the cassette small lid (5) is opened, the roller (46) of the lever (49) is pushed up and placed on the fixed guide rail (54) before starting the motor (30). (Four
The leaf spring (11) provided below the small lid through the small hole (9) of the small lid by making the pin (50) unrotatable and lowering the pin (50).
The present invention solves the above-mentioned problems by obtaining a data imprinting device for an X-ray film cassette, which is characterized by comprising a small lid opening / closing device for pressing the small lid to unlock.

(Operation) Since the pin that engages with the small hole of the small lid to open and close is driven separately in the vertical direction and the horizontal direction, useless frictional force intervenes during movement of the small lid. The data can be imprinted by smoothly opening and closing the small lid.

(Example) FIGS. 1 to 3 schematically show a data imprinting apparatus for an X-ray film cassette according to the present invention, FIG. 1 is a side view showing a C-4 cross section of FIG. 2, and FIG. 2 is FIG. FIG. 3 is a plan view showing a DD cross section of FIG. 3, and FIG. 3 is a sectional view taken along the line EE of FIG.

The casing 16 of the apparatus has four side plates, a base plate 17 and a top plate 18.
It is surrounded by 19 to form a dark box, and the inside is divided by the partition plate 20 into the lower chamber 2
1, divided into upper chamber 22.

The lower chamber 21 accommodates a mechanism for opening and closing and exposing the small lid 5 of the cassette a, and the upper chamber 22 serves as a lamp chamber for imprinting data.

First, the upper chamber 22, which is a lamp chamber, will be described. A lamp 23 is placed on the side of the partition plate 20, and a lens 24 is attached to the partition plate 20 so as to penetrate through the central portion of the partition plate.

Square holes 15 are provided in the lower layer of the central part of the upper plate 18 which has a double structure.
Of the card b in which data is entered as shown in FIG. 3 is inserted from the lateral gap and supported by the edge of the square hole 15 and illuminated by the lamp 23 from diagonally below. The image is connected to the film surface of the cassette inserted in the lower chamber by the lens 24.

The small lid opening / closing device for the cassette stored in the lower chamber 21 is
It is configured as shown in FIG. FIG. 4 is a plan view showing a device for driving the shutter plate, FIG. 5 is a side view thereof, FIG. 6 is a plan view showing a device for unlocking and opening and closing the small lid of the cassette, and FIG. It is a FF sectional view of a figure.

(A) First, the device for driving the shutter plate will be described with reference to FIGS.

As shown in FIGS. 1 to 3, a gap is formed in the substrate 17 into which the corner of the cassette a provided with the exposure window is inserted from the side, and the cassette contacts the front and side walls of this gap. And stop at a certain position, the exposure window 6 closed by the small lid 5,
The opening 8 overlaps the window 25 on the upper surface of the substrate.

On the window 25, an exposure hole 26 is opened and a shutter plate 28 having a sliding piece 27 is movably attached. That is, the sliding piece 27 is slidably fitted to the guide rod 29 fixed to the base plate 17, and the connecting rod 32 driven by the motor 30 provided in the lower chamber 21 via the crank 31 is a pin. Since it is connected to the shutter plate 28 via 33, when the crank 31 is rotated by the motor 30, the shutter plate 28 reciprocates along the guide rod 29 in the left-right direction of FIGS.

On the shutter plate 28, there is provided a cover plate 35 which engages with both sides of the guides 34 and 34 and slides along the guides.

One end of a first lever 37 pivotally attached to a side projection of the shutter plate 28 by a shaft 36 is pivotally attached to a cover plate 35 by a shaft 38. Two stoppers on both sides of this lever 37
39 and 40 are fixed to the board 17.

The cover plate 35, the first lever 37, the stoppers 39, 40, etc.
When the shutter plate 28 moves to the right, the exposure window 26 is opened, and when it goes to the left, the exposure window is closed.

With such a configuration, the cassette a is inserted into the gap of the substrate to align the exposure window 6 with the window 25 of the substrate, and the motor 30
Thus, when the crank 31 is rotated once, the shutter plate 28 moves rightward from the state shown in FIG. 4 and then leftward again to return to the original state.
As a result, the exposure hole 26 of the shutter plate is set to the exposure window 6 of the cassette.
Make a round trip on the top. Therefore, if the cassette small lid 5 is opened by a mechanism described later and the image of the card b is projected from the lens 24, the data of the card is imaged on the film surface.

When the shutter plate 28 is moving to the right, as shown in FIG.
35 does not block the exposure hole 26, but at the end of the right row the lever
37 collides with the right stopper 40 and rotates right about the shaft 36 to move the cover plate 35 to the right to close the exposure hole 26.
Therefore, when the shutter plate 28 moves to the right, the exposure window 26 is closed. When the shutter plate 28 reaches the end of the leftward movement, the lever 37 collides with the left stopper 39 to rotate the lever 37 counterclockwise, the cover plate is caused to move leftward, and the exposure window 26 is opened again.

(B) FIGS. 6 to 7 show a device for opening and closing the small lid 5 of the cassette. Illustration of the cover plate 35 and related mechanisms is omitted.

When the cassette a is pushed into the space of the board 17 and set in the proper position, the two micro switches (not shown) that come into contact with the front and side surfaces of the cassette are closed,
The solenoid 41 fixed in the lower chamber 21 is energized, and the other end of the second lever 43 pivotally attached to the substrate by the shaft 42 is pulled to the solenoid side. As a result, the lower side 45a of the bifurcated lever 45 pivotally supported by the horizontal shaft 44 is pushed rightward by the lever 43, and the upper side 45b pushes up the roller 46. The roller 46 is the shutter plate 2
A side plate 47 connected to 8 is pivotally attached to a side surface of a right end portion of a third lever 49 pivotally attached by a horizontal shaft 48, and a pin 50 is vertically attached to the right end portion of the lever 49 via a bracket 51. It is slidably supported by. The pin 50 has a leaf spring 11 by a spring 52.
The contact with and is buffered. At the right end of the lever 49, a tension spring 53 stretched between the side plate 47,
The elasticity to lift this right end is added. Reference numeral 54 is a guide rail that is brought into contact with the roller 46 and is connected to the substrate 17.

With the above-described structure, when the solenoid 41 is energized to push the lower side 45a of the bifurcated lever 45 with the second lever 43 and push up the roller 46 with the upper side 45b, this causes the bifurcated lever 4 to move.
5, the third lever 49, the roller 46, etc. are moved from the chain line position in FIG. 7 to the solid line position, the upper side 45b of the bifurcated lever and the guide rail 54 are connected, and the pin 50 is the exposure hole 26, the window 25, the cassette. The leaf spring 11 of the cassette is pushed down almost vertically through the small hole 9 of the small lid, and the engagement with the notch 10 is released.

In this embodiment, as shown in FIG. 4 and FIG.
Is L-shaped and has a pin 50 on one side, and a bracket
Although this portion is blocked by 51, the exposure window may be rectangular and a hole through which the pin 50 is inserted may be formed separately.

When the upper side 45b of the bifurcated lever and the guide rail 54 are connected to each other, the motor 30 is rotated to move the shutter plate as described above.
When 28 is moved rightward, the third lever 49 moves rightward together with the side plate 47, and the roller 46 moves the guide rail 5 from the upper side 45b of the forked lever.
After moving to 4, the energization of the solenoid 41 is stopped. Therefore, the pin 50 is still inserted in the small hole 9 of the cassette small lid, and the small lid 5 is opened and closed due to the pin 50 reciprocating with the movement of the shutter plate.

When the crank 31 makes one revolution and returns to the original position, and the roller 46 is disengaged from the guide rail 54, the energization of the solenoid 41 is stopped when the energization of the motor 30 is started, and the lever 43 moves the lower side 45a of the bifurcated lever 45a. Since it is not pushed, the upper side 45b descends, and the roller 46 comes into contact with the end of the guide rail 54 and cannot move to the right. Therefore, after the motor 30 is de-energized, the rotation is blocked even if it tries to rotate a little due to inertia, and the shutter plate 28 is held immovably. At this time, pin 50 is the lever
With the right end of 49, the cassette rises and escapes from the small hole 9 of the cassette small lid, and the cassette can be freely taken out from the gap of the substrate of the casing 16.

As described in (a) and (b) above, when the cassette a is inserted into the space of the base plate 17 of the casing, and when it is set in the regular position, the micro switch senses this and actuates the solenoid 41, and The lever 45 is rotated to push up the roller 46 and the pin 50 is lowered to release the lock by the leaf spring 11 through the small hole 9 of the cassette small lid, and then the crank 31 is rotated once by the motor 30 to release the shutter. Since the plate 28 is reciprocated and the small lid 5 is opened and closed, the light reflected by the lamp that illuminates the card placed in the square hole 15 of the upper plate 18, passes through the lens 24 and the square hole 15, and forms the image of the card on the film The data written on the card can be exposed on the film by being projected on the film surface through the exposure hole 26 of the shutter plate.

When the crank 31 completes one rotation, the roller 46 comes into contact with the end surface of the guide rail 54 and becomes immovable, and the pin 50 is ensured to be pulled up to safely withdraw the processed cassette and insert the next cassette. Ready

Thus, the insertion of the pin 50 into the small hole 9 of the small lid of the cassette, the pressing of the leaf spring, and the opening and closing of the small lid via the pin 50 are performed.
Since they are independently performed, opening and closing of the small lid can be smoothly performed without intervening unnecessary frictional force.

In the above embodiment, the cover plate 35 is provided on the shutter plate 28 so that the exposure hole is opened when the shutter plate is moved to the right in FIG.
26 was opened to perform data exposure, and the exposure hole 26 was closed at the time of leftward so as not to perform exposure, but the cassette moved slightly during the reciprocating movement of the shutter plate 28 and the data image became unclear Although this is a concept, the double exposure may be performed by opening the exposure hole 26 when the shutter plate reciprocates if the cassette is securely attached. Therefore, in this case, the guide 34, the cover plate 35, the lever 37, the stopper 3
9 and 40 are unnecessary. In this way, if the cassette is immovable and the double exposure is performed, the exposure amount doubles. Therefore, the lens 24 can be narrowed down to make the image of data sharper.

The effect of the invention As a device for opening and closing the small lid that closes the exposure window of the cassette,
Since the pin pushing to unlock the small lid by pressing the leaf spring and the lateral movement of the pin to move the small lid are performed independently by separate devices, one end of the pin can be Compared with a mechanism that can perform pin pushing and lateral movement all at once by a circular movement around the center, it is possible to smoothly open and close the small lid with less intervention of frictional force that hinders smooth movement. .

[Brief description of drawings]

1 to 7 show an embodiment of a data imprinting apparatus for an X-ray film cassette according to the present invention. FIG. 1 is a side view which is a sectional view taken along line CC of FIG. 2, and FIG. 2 is D of FIG. -D
FIG. 3 is a cross-sectional plan view, FIG. 3 is a cross-sectional view taken along the line EE of FIG.
FIG. 4 is a plan view showing a mechanism for driving the shutter plate, and FIG.
FIG. 6 is a side view thereof, FIG. 6 is a plan view showing a mechanism for unlocking the small lid of the cassette, FIG. 7 is a sectional view taken along line F-F of FIG. 6, FIG. 8 is a perspective view of the cassette, and FIG. The figure is A- in Figure 8.
A sectional view, FIG. 10 is a sectional view taken along line BB in FIG. 9, and FIG. 11 is a partial sectional view schematically showing a conventional small lid driving mechanism. a: Cassette, b: Card, 1: Main body, 2: Hinge, 3: Lid, 4: Handle, 5: Small lid, 6: Exposure window, 7: Small lid guide, 8: Opening, 9: Small hole, 10 : Notch, 11: Leaf spring, 12: Shading piece, 13: Pin, 14:
Horizontal axis, 15: Square hole, 16: Casing, 17: Substrate, 18: Top plate, 1
9: Side plate, 20: Partition plate, 21: Lower chamber, 22: Upper chamber, 23: Lamp, 2
4: Lens, 25: Window, 26: Exposure hole, 27: Sliding piece, 28: Shutter plate, 29: Guide rod, 30: Motor, 31: Crank, 32: Continuous rod, 3
3: Pin, 34: Guide, 35: Cover plate, 36: Shaft, 37: First lever, 38: Shaft, 39, 40: Stopper, 41: Solenoid, 42: Shaft,
43: second bar, 44: horizontal axis, 45: forked lever, 45a: lower side, 4
5b: upper side, 46: roller, 47: side plate, 48: shaft, 49: third lever, 50: pin, 51: bracket, 52, 53: spring, 54: guide rail.

Claims (1)

(57) [Claims] 1. An exposure window (6) for data imprinting is opened and closed by moving along a small lid guide (7), and when closed, a leaf spring (1
An X-ray film for transferring data through an exposure window (6) to an X-ray film stored in a cassette (a) having a small lid (5) that is locked by engaging the notch of the small lid guide (7). In the cassette data imprinting device, a substrate (17) having a space into which a corner of the cassette (a) can be inserted, an upper plate (18) having a window on which a card (b) on which data is written are formed, and a side plate (19). ) With casing (1
6) is formed, and the inside of the casing is divided into a lower chamber (21) and an upper chamber (22) by a partition plate (20) fitted with a lens (24),
A lamp (23) is installed in the upper chamber (22), and a small lid (5) of the cassette (a) inserted in the substrate (17) is opened and closed in the lower chamber (21) and the inside of the cassette exposure window (6) is opened. Is composed of a mechanism for making the light that has passed through the lens (24) enter, and this mechanism is reciprocally moved by a motor (30) through a crank mechanism along a fixed guide rod (29). An exposure device using a shutter plate (28) having (26), a pin (50) inserted into a small hole (9) of the cassette small lid (5) and a roller (46) are provided at both ends, and a spring (53) is provided. ), The third lever (49) whose end with the pin (50) is pulled up is pivotally attached to the side plate (47) connected to the shutter plate (28) with the horizontal axis (48),
When opening the small lid (5) of the cassette, push up the roller (46) of the lever (49) and place it on the fixed guide rail (54) and rotate the lever (49) before starting the motor (30). Immobilize and lower the pin (50) to the small hole (9) in the small lid.
A device for imprinting data for an X-ray film cassette, comprising a small lid opening / closing device for releasing a lock of the small lid by pushing a leaf spring (11) provided below the small lid.